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Cleanroom refrigeration equipment is primarily designed to maintain a constant temperature environment in the workshop. The conventional refrigeration air conditioners for cleanrooms usually come with multiple layers of filters, and the air processing procedure is highly standardized and rigorous: the air first undergoes pre-filtering treatment, then flows through the refrigeration coils to achieve cooling, and finally passes through the high-efficiency filter for purification before being sent into the workshop. This purification and cooling processing procedure is beyond the capabilities of ordinary household air conditioners. Therefore, when purchasing cleanroom refrigeration equipment, one should not only consider the cooling capacity but also pay particular attention to the air volume and the static pressure outside the machine. Among them, the static pressure outside the machine directly determines whether the air can smoothly pass through the high-efficiency filter, which is a key indicator for ensuring the circulation effect of air supply.
During the actual operation of the equipment, cleanroom refrigeration equipment often exhibits various abnormal phenomena. Identifying the causes of these phenomena can help staff quickly address equipment issues and ensure the normal production environment of the workshop.
Situation 1: The workshop temperature cannot be lowered
The common causes of this phenomenon include: insufficient refrigerant storage or leakage, poor heat dissipation of the condenser, improper adjustment of the expansion valve opening, and excessive resistance of the filter. The troubleshooting suggestions should start from simple steps, and the first step is to check whether there are obstructions around the outdoor unit and whether the filter meets the replacement standard. If the simple problems are not resolved after the inspection, contact the equipment service provider to test the refrigeration system pressure.
Situation 2: The compressor frequently starts and stops
The common causes of this phenomenon include: too small temperature difference setting in the thermostat, excessive or insufficient refrigerant addition, and overload protection triggered by the compressor. Frequent starting and stopping of the compressor will significantly shorten the equipment's service life. Do not ignore this abnormality for a long time. Staff can first check the temperature control parameters and eliminate the problem of human setting before conducting in-depth fault troubleshooting.
Situation 3: There is an odor coming from the outlet
The common causes of this phenomenon include: microbial growth in the water collection pan of the equipment, accumulation of pollutants on the filter, and moisture-induced mold on the insulation layer. During daily maintenance, it is necessary to regularly clean the water collection pan and replace the contaminated filter in time. If it is a newly installed equipment, the odor is likely to come from the evaporation of the equipment's raw materials, and it will generally fade and dissipate after running for a period of time.
Special reminder: The above analysis is only for the common abnormal situations of the equipment and is not a professional fault diagnosis conclusion. Different models of refrigeration equipment have differences in internal structure and control logic. When the equipment shows abnormal operating conditions, it is recommended to suspend the equipment operation, contact a qualified maintenance personnel for on-site inspection, and do not privately disassemble and repair the equipment to avoid improper operation causing secondary damage to the equipment and triggering larger fault losses.
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Jiangsu Jincheng Air Conditioning Engineering Co., Ltd. is a comprehensive manufacturer of special air-conditioning equipment design, production, installation, and commissioning of clean room, electricity, tobacco, civil air defense engineering, medical clean room, clean room, electricity, tobacco, civil air defense engineering, medical clean room. Mainly produce JCZK combined air conditioning unit, cooling tower, glass steel ventilated galvanized sheet pipe, stainless steel pipe, polyurethane ventilation pipe and air conditioning accessories, Jincheng air conditioner is wide, the type, the unique model, superior performance, and user Favused.
